Rotary motor.



PATENTED APR. 30, 1907.

J. W. STAM. ROTARY MOTOR.

APPLICATION FILED JAN. 12, 1907.

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PATENTED APR..30, 1907.

J. W. STAM.

ROTARY MOTOR.

APPLIOATION FILED JAN.12,1907.

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No. 852,144. PATENTED APR. 30,1907.

' J. W. STAM.

ROTARY MOTOR.

APPLICATION FILED JAN. 12, 1907.

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JOHN W. STAM, OF CHINOOK, MONTANA.

ROTARY moron.

Specification of Letters Patent.

Patented April 30, 1907.

. To all whom it may concern:

' Be itknown that I, J OHN W. STAM, a citizen of the United States of America, residing at Chinook, in the county of Chouteau and State of Montana, have invented new and useful Improvements in Rotary Motors, of which the following is a specification.

This invention relates to rotary motors, and one of the principal objects of the same is to provide an eflicient motor of simple construction which will be economical in the use of steam or other motive element, and which will operate'smoothly and uniformly.

Another object of my invention is to provide a rotary motor in which the centrally disposed rotative element is provided with pockets upon each of its side faces which are automatically placed in communication with steam chests locatedat opposite sides of the inner wall of the casing without the use of moving valves.

These and other objects may beattained by means of the constructionillustrated in the accompanying drawings, in which:

Figure 1 is a View in elevation showing the steam chests within the casing at opposite sides of the central shaft. Fig. 2 is a similar view showing the arrangement of the steam inlet ring, and the meansfor holding the same rigidly to the steam chest. Fig. 3 is a vertical section through the casing and showing a face view of one side of the rotary element. the motor, taken .on the line 44, Fig. 3 looking in the direction indicated by the arrow in said Fig. 3. Fig. 5 is a plan view of the steam inlet ring. Fig. 6 is a longitudinal section on the line 6-6, Fig. 3 looking in the direction indicated by the arrows in said figure. Fig. 7 is a perspective view of the two retainer rings. tional view showing one of the exhaust valves. Fig. 9 is a detail sectional view on the line 99, Fig. 8.

Referring to the drawings for a more particular description of my invention, the

numeral 1 designates the casing comprising a ring or? band dis osed' between two face plates .2. Secure by means of bolts 3 to each of the face plates 2 is a plate or disk 4 rovided with steam chest'compartments 5 ocated at opposite sides'of the central shaft 6 which passes through said plate or disk 4.

Fig. 4 is a central vertical section of- Fig. 8 is a detail sec-v The steam compartments 5 are provided with interconnnunicating steam passages 7. An inlet pipe 8 for steam passes through the casing l and communicates with one of the steam chambers 5, as shown more particularly in Fig. l, and an exhaust pipe 9 communicates with the interior of the casing 1 at a point intermediate between the two disks 4. Upon reference to Fig. 6 it will be seen that there are two inlet pipes 8, one for each plate or disk 4. 1

Fixed upon the shaft 6 is the rotary element 10 provided upon its opposite faces with curved inclined steam pockets 11 provided with dovetailed or undercut sidewalls 12 and an undercutshoulder or abutment 13 at the terminal end of each pocket. Upon reference to Fig. 3 it will be seen that these curved pockets are reversely disposed on.opposi'te sides of the same face of the element 10 and that the pockets upon opposite sides of said element are disposed oppositely to those of the other side. Dividing the pock ets at diametrically opposite sides of the element 10 are plain surfaces 14: which serve as cut-offs for the steam at those points. At four points within the periphery of the rotary element 10 are formed openings 15, Fig. 8, which extend through the outer portion of, the element 10 and communicate with the pocket 11 at points adjacent to the abutment 13. Mounted in the opening 15 is a valve seat 16 provided with a skeleton portion 17 through which the valve stem 18 passes, said valve stem having a conical valve 19 on one end, and an inclined cam 20 upon the opposite end, a coil spring 21 being disposed between the cam 20 and the case 17, and the tensionof said spring being exerted to seat the valve.

At suitable points within the casing 1 is located a pin 22 against which the cams 20 are brought in contact during the rotation of the element 10 to unseat the vave and permit the steam to exhaust into tlr chamber 23 outside the rotary element and escape through the exhaust pipe 9. A steam inlet ring- 24, Fig. 5, is provided with diagonally disposed inlet openings 25, said openings extending through the ring 24 in an inclined or diagonal direction and conmiuniccitingi at ets .theirinner portions with the steam poc 11 while the outer endof said openings comthem for the flanges that the rotary element receives steam upon y of same to attacl to sh through a to 11.

bers 5 whichare placed into cormnunication .14 disposed Iclaim is:

municate with the steam chests 5. The ring-- 24 is .provided with outwardly extending flanges 26 which are guided during the rotation of the element '10- by means of a-retainer ring 27 and a smaller retainer ring 28', said rings being secured by bolts 29 to the rotary element 10 and forming a guidewaybetween 26 of the inlet ring 2 1 Oscillating tongues 30 are pivoted at 31 upon the inner face of ring 24, adapting them selves to curve, andrise and fall of pockets 11, thereby obviating reverse flow of steam or other motive element, and in consequence striking abutments 13 with greater impact.

The operation of my invention may be briefly described as follows: Steam being admitted through pipe '8 to the steam chaming, an inlet ring secured to said steam chests and rovided with an opening communicaterewith, and a rotary element having oppositely inclined steam pockets upon opposite faces thereof, abutments at the'terminal e nds 'of said pockets, exhaust valves communlcatm wit said pockets, cams on said valves, and means for opening said valves at intervals to exhaust, substantially as described. 2. In a'rotary m steam chests, a rotary element having inclined pockets in opposite sides thereof, plain surfaces intermediate said pocket, said surfaces operating as valves to cut oii the inlet steam, rings disposed ment and the steam chests and provided with by means of the openings 7 in thedisk 4, the diagonal openings which communicate with steam or other motive element passes through the openings at in the plates 4 and from thence through the diagonally disposed inlet openings 25 in the ring 24, thesteam by intermediate the pockets 11,and at this point the cam 20 comes in contact with the pin 22 which unseats the valve 19 and permits the steam to exhaust into the side of the element 10 simultaneously, and while the pockets upon one side of the 'element 10 are receiving steam, those uponthe 1 other side are being exhausted'and vice stantially as described.

3. "In a rotary engine, disposed steam chests within said casmg, a rotary element provided with oppositely inclined curved pockets provided with inclined end abutments, inlet rings disposed between the rotary element and the steam chests, and automatically operated exhaust valves.

4. In a rotary engine, a casing, oppositely disposed steam chests therein, a rotary element mounted upon a shaft and disposed intermediate said steam chests, oppositely inclined dovetailed pockets in said rotary ele-, ment, inclined abutments at the ends'of said pockets, means for admitting steam to said pocket-s intermittently, and means for exhaustin the steam from said pockets intermittent y and automatically.

5. In a rotary motor, a rotary impact impinging upon the abutments 13 and'rotating the element 10. The opening 25 is closed by means of the plain surfaces chamber 23. The steam chests 5 normally contain sufficient steam or other motive element to operate upon both pockets on one versa. Hence, the rotary element is receiving two jets of steam almost continuously upon one side or the other of said rotary elelement proment. vided with curved op ositely inclined dove- From the foregoing it Wlll'be' obvious that tailed-"pockets, incline abutments at the tera rotary motor made in accordance with my minal ends of said pockets, and plain cut-ofl' invention isof simple construction, can be portions between said pockets,substantially readily used as a compressed air, steam, gas That this motor l may be easily converted to the use of other elements than steam by eliminating openings 7 and 8 from steam chests 5, Fig. 1, and placing automatic valve at opening a, thereside face of casing on each side-tohave two cylinders, pistons disposed steain chests within said casing, said steam. chests comprising a plurality of chambers with intercommunicating passages',' a rotary element disposed between said steam chests, and inclined dovetailed pockets in said rotary element.

7. In a rotary motor, acasing, steam chests therein, a rotary element in said casing, said rotary element having curved dovetailed pockets therein, rings interposed between said. rotary element and said steam chests, said rings having diagonally disposed inlets which communicate with the steam chests andwith said pockets.

8. A rotary motor comprising a casing, steam chests in said casing, a rotary element mounted between said steam chests and provided with inclined curved pockets, an inlet opposite sides thereof, the action is smooth,

balanced and uniform.

h as described. I a

or other motor and that, owing to the fact '6. In a rotarymotor, a casing, oppositely y forming compression chambers 5. Outalternating compressors or ft 6 by means of cams or cranks, automatically compressing gasolene or other element and; discharging same into chamber 5 for explosionor discharge Having thus described the invention, what t 1. In a rotary motor, a casing, steam chests disposed at "opposite sides of said-castor, oppositely disposed said steam chests and with said pockets, suba casing, oppositely between therotary elering interposed between said rotary element and said steam chests, said ring having inclined openings which establish communication between the steam chests and the pockets, and said inlet ring being mounted in va guideway formed by two retainer rings secured to the rotary element. 

